122 citations · 796 across the 25 of their papers we have counts for
4 papers · 1 filter
Role of impurity oxygen in superconductivity of "non-doped" T'-(La,RE)2CuO4
A. Tsukada, M. Noda, H. Yamamoto +1
We have systematically investigated the effect of oxygen nonstoichiometry in a nominally undoped superconductor T'-(La,Y)2CuO4+y. In the experiments, the reduction condition was ch…
Ce doping in T-La2CuO4 films: Broken electron-hole symmetry for high-Tc superconductivity
A. Tsukada, H. Yamamoto, M. Naito
We attempted Ce doping in La2CuO4 with the K2NiF4 (T) structure by molecular beam epitaxy. At low growth temperature and with an appropriate substrate choice, we found that Ce can…
Origin of superconducting carriers in "non-doped" T'- (La,RE)2CuO4 (RE = Sm, Eu, Gd, Tb, Lu, and Y) prepared by molecular beam epitaxy
M. Noda, A. Tsukada, H. Yamamoto +1
We have performed a systematic investigation of the variations of the lattice constants with substituent rare-earth element concentration x in the nominally undoped superconductors…
New class of T-prime-structure cuprate superconductors
A. Tsukada, Y. Krockenberger, M. Noda +4
High-temperature superconductivity has been discovered in La2-xBaxCuO4 [1], a compound that derives from the undoped La2CuO4 crystallizing in the perovskite T-structure. In this st…